Multiferroic 0.7BiFeO(3)-0.3PbTiO(3) thin films prepared by a sol-gel method

作者：Yu Huichun; Guo Haiyan; Zhu Weimin; Zhuang Jian; Ren Wei; Ye Zuo Guang^*

来源：Thin Solid Films, 2015, 585: 82-85.

DOI：10.1016/j.tsf.2015.02.021

• BiFeO3-PbTiO3 solid solution
• Thin films
• Multiferroic properties
• Sol-gel method

Multiferroic 0.7BiFeO(3)-0.3PbTiO(3) (BFO-PT) thin films have been prepared by a sol-gel method on Pt/Ti/SiO2/Si substrates. A strong dielectric dispersion was observed above 10 kHz and a relatively low dielectric loss was found at low frequencies. The BFO-PT thin films exhibit both ferroelectricity and (week) ferromagnetism with P-r = 13.7 mu C/cm(2) and M-S = 3200 A/m at room temperature, confirming the multiferroic properties. The local polar domain structure and ferroelectric switching of the thin films were investigated by piezoresponse force microscopy.

• 出版日期2015-6-30
• 单位西安交通大学